view contrib/showstack.py @ 37135:ecac0006b90e

localrepo: move featuresetupfuncs out of localrepository class (API)

I want to establish an interface for local repositories.

featuresetupfuncs is a class attribute and is global/shared across all
localrepository instances. Let's move it to a module-level attribute
to clarify it isn't part of the local repository interface.

.. api::

   localrepo.localrepository.featuresetupfuncs has been renamed to
   localrepo.featuresetupfuncs.

Differential Revision: https://phab.mercurial-scm.org/D2925

# showstack.py - extension to dump a Python stack trace on signal
#
# binds to both SIGQUIT (Ctrl-\) and SIGINFO (Ctrl-T on BSDs)
"""dump stack trace when receiving SIGQUIT (Ctrl-\) and SIGINFO (Ctrl-T on BSDs)
"""

from __future__ import absolute_import
import signal
import sys
import traceback

def sigshow(*args):
    sys.stderr.write("\n")
    traceback.print_stack(args[1], limit=10, file=sys.stderr)
    sys.stderr.write("----\n")

def extsetup(ui):
    signal.signal(signal.SIGQUIT, sigshow)
    try:
        signal.signal(signal.SIGINFO, sigshow)
    except AttributeError:
        pass